Floating reamer



Jan. 2, 1.923. Lows v All@ Patented dan. 2, 1923.

arranca afar vortica.

JOSEPH A. BENNETT, OF CLEVELAND, OHIO, ASSIGNOR TO HAERYAF. GRIFFIN, OF

' CLEVELAND,l OHIO.

FLOATING BEAMER.

Application led April 3, 1915. Serial No. 18,947.

To (all whom it may con-cern Be it known that I. Josaru A. BENNETT, a citizen of the United States. residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Floating Re'amers;

and I do hereby declare the following to a reamer which can-be easily and cheaplyl manufactured and at the same time have all the advantages of adjustment and simplicity.

Another object of this invention is to construct a reamer which will do the desired work and still have a minimum amount of parts.

A further object of this invention is to provide means for preventing the rotation of the floating cutter head.

Gther objects of the invention will appear in the following specification and claims.

The invention consists in forming a reamerv with a cylindrical floating cutter head provided with means for adjusting and limiting vthe amount of float.

The invention further consists in means for adjusting and locking the cutters Within the cylindrical floating cutter head.

The invention still further consists' in parts and combination of parts, all of which will bev hereinafter more fully set forth and claimed in the specification and claims. In the drawings Fig. I, is a side elevation of this invention illustrating the adjusting mechanism in dotted lines.

Fig. II is atop sectional view giving a better View of the adjusting mechanism.

Fig. III is an end view showing the location of the respective adjusting mechanisms and Fig. IV is an isometric View of the cylindrical floating cutter head, illustrating the location of the several orifices and recesses.

Fig. V is a view showing a modification.

1 represents the stock or body portionof a reamer through which passes a cylindrical floating cutter head 2. The stock 1, is provided with a. pointed threaded pin 3, which engages one of the recesses 4, 4, in the cutter head 2. A sliding pin 5, provided with tapered portions 6, 6, is loosely mounted in the stock l, one of said tapered portions engaging the other of said recesses 4, 4. in the sliding cutter head 2. A screw-threaded pin 7. provided with a tapered point 8. is screwed into the stock l, at approximately right angles to the sliding pin 5. The tapered portion 8. of the pin 7. engages with the tapered portion'. of the pin 5, for the purpose hereinafter set forth. A hole 9 is provided in the cutter head 2, in which is mounted the cutters l0. 10. A screw-threaded pin 11. provided with a tapered portion 12. is screwed into the cutter head at approximately right angles to the hole 9, said pin adapted to engage the inner ends of the cutters 10. 10, so as to adjust the cutters for the desired rea-ming. Two set-screws 13, 13. are screwed into said cutter heads 2, and engage the cutters 10, 10, for the purpose of binding said cutters in the position adjusted to. These set-screws 13, 13t0gether with the threaded pin 11. are all short enough to come below the surface of said cutter head 2. With the construction above set forth it is easily seen that the stock 1, has only to be bored from side to side for the insertion of the cutter head 2; a smaller boring is required for the end of said stock for the reception of the sliding pin 5, and the screwthreaded pin 3, and a tapped opening must be provided for the reception of the threaded pin 7. In the cutter head a longitudinal hole 9, is bored for the cutters 10, 10, and another hole 4, 4, is bored at right angles thereto for the reception of the ends of the pins 3, 5, togetherwith three tapped holes for the adjusting and binding screws.

From .the foregoing it will be seen that the cutters 10, 10, are adjusted to the desired length (according to the diameter of the hole to be reamed), by means of a tapered screw 11. The cutters 10, 10, are then firmly held by the tightening of the set screws 13, 13. The screw-threaded pin 7, is inserted in the stock and the sliding pin 5, properly inserted in its place and set far enough in to allow the'insertion 'of the cutter head 2. When the cutter head 2, is inserted the threaded pin 3, is tightened so as to engage one of the holes 4, 4. of the cutter heads 2, while at the same time the threaded pin 7, is tightened so ifo the cutter head 2, within the stock and at` the lug 15, of said screw 14, engaging in the channel 16,- (see Fig. IV) of the cutter head 2, thus allowing a lateral movement while at the same time preventing rotation of the cutter head 2.

From the above it will be seen that either the sliding pin 5, in combination with a screw-threaded pin 7'., or a dog screw 14, may be employed without altering the invention.

While I have set forth and described certain details of construction I do not wish to be limited to'these details as they may be altered without departing from the invention.

Having thus described my invention, what I wish to claim is:

1. A tool comprising a stock, a cutter head mounted in said stock, cutters mounted 'in said head, in combination with a sidably mounted pin and a screw-threaded pin adapted to engage said cutter head and means for bringing said pins toward or from said cutter head. v

2'. A tool comprisin a stock,a cutter head mounted in said stoc r, cutters mounted in said head, in combination with a slidably mounted pin and a screw threaded pin engaging said cutter head, said slidably mountf ed pin engaging a tapered screw-threaded pin for the purpose set forth.

' 3. '-A tool comprising a stock, a cylindrical cutter head mounted in said stock, cutters mounted in said head, in combination with a slidably mounted pin and a screw threaded pin adapted to engage said cutter head and means or bringing said pins toward or from said cutter head.

4. A tool comprising a stock, a cylindrical cutter head slidably mounted within said stock, the axisof said cutter head being at approximately right angles to the axis of said stock, cutters mounted in said cutter head, in combination with a threaded pin mounted in said stock and adapted to engage with said cutter head for the purpose set forth. s

5. A tool Comprising a stock, a (Lutter head mounted within a cylindrical orifice in said stock, the axis of said orifice being at right angles to the axis of said stock, said cutter head held within said orifice so as to allow' a limited sliding motion and to prevent a rotary movement of the cutter head within said orifice.

Signed at Cleveland, in the county of Cuyahoga and State of Ohio', this 29th day of March, 1915.

JOSEPH A. BENNETT. 

